Sure thing! We've got 260 and we're gonna multiply it by 55. That's the same as adding 260 to itself 55 times.
Step 1: 0 + 260 = 260
Step 2: 260 + 260 = 520
Step 3: 520 + 260 = 780
Step 4: 780 + 260 = 1040
Step 5: 1040 + 260 = 1300
Step 6: 1300 + 260 = 1560
Step 7: 1560 + 260 = 1820
Step 8: 1820 + 260 = 2080
Step 9: 2080 + 260 = 2340
Step 10: 2340 + 260 = 2600
Step 11: 2600 + 260 = 2860
Step 12: 2860 + 260 = 3120
Step 13: 3120 + 260 = 3380
Step 14: 3380 + 260 = 3640
Step 15: 3640 + 260 = 3900
Step 16: 3900 + 260 = 4160
Step 17: 4160 + 260 = 4420
Step 18: 4420 + 260 = 4680
Step 19: 4680 + 260 = 4940
Step 20: 4940 + 260 = 5200
Step 21: 5200 + 260 = 5460
Step 22: 5460 + 260 = 5720
Step 23: 5720 + 260 = 5980
Step 24: 5980 + 260 = 6240
Step 25: 6240 + 260 = 6500
Step 26: 6500 + 260 = 6760
Step 27: 6760 + 260 = 7020
Step 28: 7020 + 260 = 7280
Step 29: 7280 + 260 = 7540
Step 30: 7540 + 260 = 7800
Step 31: 7800 + 260 = 8060
Step 32: 8060 + 260 = 8320
Step 33: 8320 + 260 = 8580
Step 34: 8580 + 260 = 8840
Step 35: 8840 + 260 = 9100
Step 36: 9100 + 260 = 9360
Step 37: 9360 + 260 = 9620
Step 38: 9620 + 260 = 9880
Step 39: 9880 + 260 = 10140
Step 40: 10140 + 260 = 10400
Step 41: 10400 + 260 = 10660
Step 42: 10660 + 260 = 10920
Step 43: 10920 + 260 = 11180
Step 44: 11180 + 260 = 11440
Step 45: 11440 + 260 = 11700
Step 46: 11700 + 260 = 11960
Step 47: 11960 + 260 = 12220
Step 48: 12220 + 260 = 12480
Step 49: 12480 + 260 = 12740
Step 50: 12740 + 260 = 13000
Step 51: 13000 + 260 = 13260
Step 52: 13260 + 260 = 13520
Step 53: 13520 + 260 = 13780
Step 54: 13780 + 260 = 14040
Step 55: 14040 + 260 = 14300

So, 260*55 = 14300